package com.mlh.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.mlh.entity.LoginUser;
import com.mlh.entity.User;
import com.mlh.mapper.UserMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;

import java.util.Objects;

/**
 * @author 缪林辉
 * @date 2024/3/15 22:24
 * @DESCRIPTION
 */
@Service
public class UserDetailsServiceImpl implements UserDetailsService {
    @Autowired
    private UserMapper userMapper;
    @Override
    public UserDetails loadUserByUsername(String username) throws
            UsernameNotFoundException {
        //根据用户名查询用户信息
        LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(User::getUserName,username);
        User user = userMapper.selectOne(queryWrapper);
         //判断是否查到用户 如果没查到抛出异常
        if(Objects.isNull(user)){
            throw new RuntimeException("用户不存在");
        }
        //返回用户信息
        // TODO 查询权限信息封装
        return new LoginUser(user);
    }
}
